<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>02-一元运算符</title>
  </head>
  <body>
    <script>
      // let num = 10
      // num = num + 1
      //num += 1
      // num++
      // console.log(num)

      // let i = 10
      // console.log(i++ + 2)
      // console.log(i)

      //了解
      let i = 1
      console.log(i++ + ++i + i)
    </script>
  </body>
</html>
